Health of older people.
D000059:Accidents; D000208:Acute Disease; D000368:Aged; D001168:Arthritis / Q000453:epidemiology; D002908:Chronic Disease; D005260:Female; D006306:Health Surveys; D006331:Heart Diseases / Q000453:epidemiology; D006760:Hospitalization; D006801:Humans; D006973:Hypertension / Q000453:epidemiology; D008297:Male; D001523:Mental Disorders / Q000453:epidemiology; D008875:Middle Aged; D009043:Motor Activity; D010548:Personal Health Services / Q000706:statistics & numerical data; D012216:Rheumatic Diseases / Q000453:epidemiology; D012737:Sex Factors; D014481:United States; D014786:Vision Disorders / Q000453:epidemiology